support different song url

Dockerfile

@@ -29,7 +29,8 @@ RUN bash -c 'virtualenv -p /usr/bin/python2 .venv2 && \
 #info
 EXPOSE 80
 # VOLUME [ "/taiko-web/public/songs" ]
-ENV TAIKO_URL http://taiko.example.com
+ENV TAIKO_SONGS_URL http://taiko.example.com
+ENV TAIKO_ASSETS_URL http://taiko.example.com
 ENV TAIKO_VERSION Nanahira
 ENV TAIKO_EMAIL 78877@qq.com
 ENV TAIKO_REDIS_HOST 127.0.0.1

docker/entrypoint.sh

 #!/bin/bash
-echo "{\"songs_baseurl\":\"$TAIKO_URL/songs/\",\"assets_baseurl\":\"$TAIKO_URL/assets/\",\"email\":\"$TAIKO_EMAIL\",\"redis_host\":\"$TAIKO_REDIS_HOST\",\"redis_port\":$TAIKO_REDIS_PORT,\"redis_password\":\"$TAIKO_REDIS_PASSWORD\",\"redis_db\":$TAIKO_REDIS_DB,\"git_url\":\"$TAIKO_GIT_URL\"}" | tee ./config.json
+if [ -z $TAIKO_SONGS_URL ]; then 
+	export TAIKO_SONGS_URL=$TAIKO_URL
+fi
+if [ -z $TAIKO_ASSETS_URL ]; then 
+	export TAIKO_ASSETS_URL=$TAIKO_URL
+fi
+echo "{\"songs_baseurl\":\"$TAIKO_SONGS_URL/songs/\",\"assets_baseurl\":\"$TAIKO_ASSETS_URL/assets/\",\"email\":\"$TAIKO_EMAIL\",\"redis_host\":\"$TAIKO_REDIS_HOST\",\"redis_port\":$TAIKO_REDIS_PORT,\"redis_password\":\"$TAIKO_REDIS_PASSWORD\",\"redis_db\":$TAIKO_REDIS_DB,\"git_url\":\"$TAIKO_GIT_URL\"}" | tee ./config.json
 echo "{\"commit\":\"$(git log --pretty=%H -1)\",\"commit_short\":\"$(git log --pretty=%h -1)\",\"version\": \"$TAIKO_VERSION\"}" | tee ./version.json
 
 pm2-docker start ./docker/pm2-docker.json